exam Maths Puzzle Numerical Ability

Maria deposited $1200 in an account that paid 6 1/2 percent interest compounded continuously. How much money did she have in 8 years? (A, = Pe^rt)

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exam Other Question

Can anyone show me how to do this problem?

MUltiply 3x-30/x^2-4x * 8x/10-x
-9^2/(-2)^2



(PS: Please show how you worked it out. I have been having mojor problems with these kinds of questions. Thanks.)